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The relative mass of a proton measures around 1.0073, "relative" here being defined with respect to the Atomic Mass unit (or Dalton), a twelfth the mass of a carbon-12 atom in its ground state. So it's convenient to say a proton or neutron's relative mass is roughly 1 (the neutron being just barely heavier).
The relative mass of a substance is much more convenient to use than the actual mass since it is such a tiny fraction of the everyday units of mass.. the approximate number of protons it would take just to get one gram would be about six hundred thousand billion billion!
What else can I help you with?
What they do mass number?
Mass number is about the neutrons and protons. The total of neutrons and protons.
Which subatomic particles makes up most of the mass off the atom?
The major contribution to the mass of an atom is from protons and neutrons; electrons have a known but negligible mass.
Can protons have twice the mass of neutrons?
No; the mass of proton is similar to the mass of neutrons.
Have about 1800 times less mass than protons and neutrons?
Electrons have ~1800 times less mass than protons and neutrons
What is pair of particles with nearly the same mass?
Protons and neutrons have near identical mass. One will not have to account for the difference in mass in most calculations.
What are the relative atomic mass of subatomic particles in atom?
The relative atomic mass of electrons is considered negligible, as they are much lighter than protons and neutrons. Protons and neutrons each have a relative atomic mass of approximately 1, as they are found in the nucleus of an atom and contribute to its overall mass.
Which subatomic particles have similar masses?
Neutrons and protons have mass 1 (relative to proton, given the value of 1).Electrons have mass 1/1840 (relative to proton, given the value of 1).:)Protons and neutrons have almost the same mass.
The number of an element determines its?
it depends which number you are referring to. in the periodic table, the numbers referr to number of protons and then relative atomic mass. the larger number is relative atomic mass and the smaller number is the number of protons for example, chlorine, has a relative atomic mass of 35.5 and a proton number of 17
How do you identify the relative mass relaitive charge and location of the three smaller subatomic particle of an atom?
protons --- rel. mass 1 amu, rel. charge +1, location in the nucleus. neutrons --- rel. mass 1 amu, rel. charge 0, location in the nucleus. electrons --- rel. mass 0 amu, rel. charge -1, location outside the nucleus.
Mass of electron compared to proton?
Mass of electron is about 1837 times less than the mass of proton
What is The atomic weight of an atom reflects the average number of?
the mass of an atom of a chemical element expressed in atomic mass units. It is approximately equivalent to the number of protons and neutrons in the atom (the mass number) or to the average number allowing for the relative abundances of different isotopes.
What is the atomic mass on the periodic table?
Each element on the periodic table has two numbers: the atomic number and the relative atomic mass. The atomic number is the number of protons in the nucleus, and the relative atomic mass is the total number of protons and neutrons (so the difference between them is the number of neutrons). The relative atomic mass is always the higher of the two.
How is the mass number determine?
the mass number is determined on the number of protons and neutrons in the nucleus of the atom.
What is a significant feature of the atomic mass?
The relative atomic mass represents the number of nucleons (neutrons+protons) of an atom.
What determine the atom mass?
Essentially an atom's mass is determined by its number of protons and neutrons, as mass of electrons is so minuscule relative the nucleus.
Why the relative atomic mass of an element in th periodic table in fractional form?
The top left number is the mass (neutrons&protons) and the bottom left number is the atomic number(protons)
Distinguish between the subatomic particles in terms of relative charge and mass?
Protons have a positive charge and a mass of about 1 atomic mass unit (u). Neutrons have no charge (neutral) and a similar mass to protons. Electrons have a negative charge and a much smaller mass compared to protons and neutrons.
